James Taylor remembers very well the disappointment among his petrol-head friends when the XJ-S was announced in 1975. It was not a replacement for the legendary E-type; its colours were uninspired; and its interior was drab. All credit, then, to those people at Jaguar who truly believed in the car and, over a period of nearly 20 years, turned the ugly duckling into a swan. From the moment the ...